Method of coloring white transparent crushed marble, silica, or the like for making colored art marble, terraza, or the like



March 11 1924. 11,486,208

J. WEBER METHOD OF COLORING WHITE TRANSPARENT CRUSHED MARBLE, SILICA, OR THE LIKE FOR MAKING COLORED ART MARBLE, TERRAZA, OR THE LIKE Filed March 6. 1923 attozn u:

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METHOD OF COLORING!- WHITE TRANSPARENT GRUSHED MARBLE, SILICA, OR THE LIKE FOR MAKING- QOLORED ART MARBLE, TEBRAZA, OR THE nmn.

Application filed March 6, 192a. Serial n fezazse.

ments in methods of coloring white trans-.

parent crushed marble, silica, or the like, for making colored art marble, terraza, or the like, of which the following is a specification.

This invention is directed to a method of making ornamental slabs, pillars, or the like in any desired number and arrangementof colors, with any desired mottled or mosaic efiect.

It has been heretofore proposed to secure the desired results by molding in a cement or other base small particles of marble or like material of difi'erent natural colors, and this method, while fully efi'ective, necessitated the chigtsl; l

y natura transparent or semltranssecuring of suficient quantity of the naturally-colored materials. Whilethis is entirely feasible, though expensive, it was objectionable in that the colored materials for the .particular work were not always at hand.

It is also imperative in a marble surface that the appearance of trans arency of depth be reserved, as otherwise t e efiect' is merely t at of a painted surface.

The present method seeks to overcome the an objection to previousmethods, and to preserve the depth or transparency of the finished product, while permitting the use of any and all colors as may be required, without necessitating the use of naturally as colored materials."

lln carrying out the method small, irregular or regular shapes of the material uire'd in its natural or white color are emp oyed. These shapes are subjected to a surface coloreo .ing, which may be had in several ways. For example a suitable paint or pigment mixture may e applied to these chips, or a liquid cement may be colored the desired color and I the chips placed therein until coated. The 15 colored chips are allowed to dry and harden, if cement coloring is used, and then these chips ofthe various colors required for the particular work are molded into the required form with a cement base. The surface then presents the colored a earance imparted by Thi ssurface is then fincut down to aneven surface the colored chips.

ished by being andpolished if desired. This cuts 0d the colored surface of the chips, and again presents the natural or white surface of such chips. The coloring on the back and sides of the chips has not been disturbed, however, and this coloring shows through the transparent or semitransparent chips, and so presentsIthe colored appearance. The elimination of the surface coloring gives the depth to the article, and thus fully, and completely simulates the naturally-colored material.

0f course,"any and all colorsare immediately available, and with a requisite quantity of white or naturally colored chips, any and all mottled appearances or mosaics may be readily obtained.

If desired the cement in which the colored chips are molded may be colored, thus giving the effect of a colored base, this also to some extent being reflected through the.

parent material may be used, as marble, quartz, mica spar, or the like, though with the unusually hard materials the surface is preferably cut and smoothed with an acid, as muriatic acid.

Another object attained by the invention herein described is to provide means of using colored marble or other transparent material for stucco work and the like, and further the method herein described of coloring the at .marble can be used for the purpose of coloring transparent material for roofing and the The details of the invention are illustrated in the accompanying drawings, in which:

Fig.1 represents a face view of an article, such as a slab, constructed by the method described.

Fig. 2 is a transverse section thereof.

Fig. 3 represents several chips.

The chips 1, of irregular shape, or of re lar shape if preferred, are in natural co or, in this instance white. The coloring, represented by the heavy line 2 in Fig. 2, is applied to the outer surfaces of the chips. 1% After the color has hardened, a cement base 3 is sup lied with the requisite number of chips .0 the various colors desired, and molded into the required shape. After hardening the article is surface cut, thus taking 105 ed the upper. color surface oft-he chips, as clear from Fig. 2. The remainingcolor on the bottoms and sides of the chips, indicated b the hea lines in Fig. 2, wilLshow t rough the ody of'the chips and through 1 I the upper uncolored surface, giving the cffeet of depth and naturally enhancing the color effect.

Obviously the'chips may be of some re lar designed outline, as squares, triang es, *or roughly represent figures or articles, and

when treated by the present method a de sired mosaic effect, with full depth and transparency may be obtained.

Where the chips are colored by the applicatio of colored cement, it is desirable to allow the chips to harden such covering and color by allowing them to set for a day or two to cure, thu causing the colored covering to approach the hardness of the stone to which it is applied.

Having thus described the invention, what is claimed as new is 1-.

P moving the coloring materials.

1. The herein I ingin moldin independent and'artificially colored ,chips mto an article form, and then finishing the surface of the article by re-' from those portions of the chip at such surface.

2. The herein described ing in molding an article having artificially colored independent sections of refractory materials embeddedin' the surface thereof, and finishing the surface of the'article-by cutting away the exposed coloring of suc 3. The herein described method consi sting, in coloring independent marblechips, molding's'uch in a cement base to form an article, and cutting awa the exposed colored surfaces of the chips, w ereby to permit the exposed color described method, consist method consistv In testimony whereof I masses coloring of the embedded portions of the chips to show through, to provide the efiect (iii chips in color efi'ects', consisting in coloring such chips by mixing same with cement brought to the desired color, permitting the coloring matter 'to harden on the chips,

molding independent chips of various colors with a cement base into an article, and cutting away the surface coloring of the chips.

6. An artificial stone or like article made up of independent artificially-colored chips of transparent or semi-transparent material embedded in a base, the surface coloring be-- ing removed to render the chips transparent to-,expose the embedded colorings.

' 7. An artificial stone or like article made m up of independent artificially-colored chips of transparent orsemi-transparent material embeddedin a base, for the purpose of providing material for stucco Work or roofing as described and set forth.

fiix my signature.

JACOB WEBER. 

